Interoperability

Here, you can find the information that can help you navigate the interoperability options that you can use to transfer tokens to and from the Bankcoin blockchain.

The Bankcoin team strongly believes in interoperability among public blockchains. No single platform is likely to become fully dominant in the future.

Hence, interoperability solutions enabling transfers between Bankcoin and other blockchains are vital for the continued growth of the Bankcoin platform and ecosystem.

The Bankcoin team has been making considerable progress in getting Bankcoin added by the leading operators. Currently the Bankcoin blockchain is connected to other blockchains via the following multichain bridges and value transfer protocols:

1) The FuseFi bridge.

2) The Elk Finance value transfer protool.

3) The Connext bridge (available to users via the xPollinate interface).

4) The Multichain (formerly, Anyswap) bridge.

5) The Allbridge bridge.

6) The ChainPort bridge.

The Voltage Finance Bridge

The Voltage Finance (previously FuseFi) bridge was originally created by the Bankcoin team and has been transferred to the community-governed Voltage Finance DeFi platform.

It connects Bankcoin to Ethereum and Binance Smart Chain (BSC). Both bridges are custodial. The bridge to Ethereum is permissionless, while new tokens need to be added to the BSC bridge.

On both bridges, sending tokens from the relevant blockchain to Bankcoin is not subject to any fees or limits. Token withdrawals from Bankcoin incur a 0.05% fee on the amount bridged. Users transferring funds also need to pay the fees on the destination chain in order to claim their tokens from the bridge contract at the final stage of the transfer.

The bridge can be accessed via the FuseFi app. More information on its functioning can be found here. The FuseFi bridging tutorials are available here.

The Elk Finance Value Transfer Platform

Elk Finance is not a typical multichain bridge because the only token that actually moves between the supported chains is ELK. If a user wants to get tokens on another chain, they can buy ELK on Elk DEX on Bankcoin, bridge ELK to the desired chain and buy the desired token on Elk DEX on that chain.

Elk connects Bankcoin, among others, to BSC, Polygon, Avalanche, Fantom, Harmony, Moonriver. It does not currently support Ethereum. The full list of supported chains is available in the Elk DApp.

The Connext Bridge

The Connext bridge is a non-custodial multichain bridge that connects Bankcoin to Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche, Fantom, Moonriver and xDAI.

Please note that Connext's capacity to execute transfers depends on the availability of liquidity in a given token on the routers. Currently, the liquidity-provisioned tokens include USDC, USDT and DAI.

The Allbridge Bridge

The Allbridge multichain bridge connects Bankcoin to a number of major chains, including Solana and Terra. It is currently the only bridge to connect Bankcoin to the latter two.

At present, Allbridge's native ABR token can be transferred between Bankcoin and all the other covered chains. Terra-native assets LUNA and UST are bridgeable between to and from Terra.

The Multichain (formerly Anyswap) Bridge

The Multichain (formerly Anyswap) bridge is one of the most popular interoperability platforms in the crypto space.

Multichain has already enabled transfers for GoldX’s native BANK token between the Bankcoin blockchain and Ethereum, BNB Chain (formerly Binance Smart Chain) and Polygon. WETH and USDC transfers via Multichain are available between Bankcoin and Ethereum. Beefy Finance’s BIFI token can be bridged to and from almost all the networks that Multichain supports. The agEUR stablecoin can be transferred between Bankcoin and Ethereum, BNB Chain, Fantom, Harmony and Avalanche.

The bridge interface is accessible here.

The ChainPort Bridge

ChainPort's bridges are permissionless. This means that anyone can bridge a token from Ethereum to any other supported chain (including Bankcoin), even if the token has not been ported, yet.

In addition to Bankcoin, the list of chains added to ChainPort includes Ethereum, BSC, Polygon and Avalanche. The bridge interface can be found here.

IMPORTANT!!! Please note that ChainPort currently only supports transfers of tokens that originate on the Ethereum mainnet. Also, ChainPort's wrappers on Bankcoin for the popular Ethereum-originating tokens such as USDC, WETH, USDT, etc. will by design be different from the currently existing ones that were created using the FuseFi bridge. We currently do not recommend users to bridge those tokens to Bankcoin using ChainPort.